Distributing entanglement and single photons through an intra-city, free-space quantum channel

by Resch, K.J., Lindenthal, M., Blauensteiner, B., Böhm, H.R., Fedrizzi, A., Kurtsiefer, C., Poppe, A., Schmitt-Manderbach, T., Taraba, M., Ursin, R., Walther, P., Weier, H., Weinfurter, H., Zeilinger, A.
Published 2014